Math, asked by rukaiyajmi, 7 months ago

1. The sum of the numbers 1+ 2 + 3 + ------ + 49 is :
(a) 490
(b) 1225
®
12250
(d) 122500
011320 (SET-C)
(7)

Answers

Answered by vardhannaiduravuri

1

Answer:

(b)

Step-by-step explanation:

a=1,d=1,n=49,aL=49

s49=n/2(a+aL)

=49/2(1+49)

=(50×49)/2

=2450/2

=1225

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